Patents Assigned to NT Falcon Lock
  • Patent number: 6223567
    Abstract: A lock arrangement having a driver element which has two outer surface sections. The first section has a first geometrical cross-section configuration which engages an outer lever spindle in both the locked and unlocked condition. In the unlocked condition, the first section also engages an outer driver spindle which rotates with the outer lever handle and outer lever spindle and engages the latch retraction structure for retraction of the latch. In the locked position, the second outer surface section of the driver element is aligned with outer drive spindle and the second surface section is free of driving engagement with the outer drive spindle such that retraction of the latch is prevented when the outer lever handle is rotated. A solenoid is provided on the interior of the lock and controls the movement of the driver element between the locked and unlocked positions.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: May 1, 2001
    Assignee: NT Falcon Lock
    Inventor: Cedric Q. Fadul
  • Patent number: 6021654
    Abstract: A driver element in this lock has two outer surface sections. The first of the sections has a first geometrical cross-sectional configuration which engages an outer lever spindle in both the locked and unlocked condition. In the unlocked condition the first section also engages an outer driver spindle which rotates with the outer lever handle and outer lever spindle and engages the latch retraction structure for retraction of the latch. In the locked position, a push button on the inner handle pushes the driver such that a second section of the outer surface of the driver is aligned with the outer drive spindle and the second section is free of driving engagement with the outer driver spindle such that operation of the latch is prevented when the outer lever handle is rotated.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: February 8, 2000
    Assignee: NT Falcon Lock
    Inventor: Eugene S. McCaa
  • Patent number: 5992189
    Abstract: A driver element in this lock has two outer surface sections. The first of the sections has a first geometrical cross-sectional configuration which engages an outer lever spindle in both the locked and unlocked condition. In the unlocked condition the first section also engages an outer driver spindle which rotates with the outer lever handle and outer lever spindle and engages the latch retraction structure for retraction of the latch. In the locked position, a push button on the inner handle pushes the driver such that a second section of the outer surface of the driver is aligned with the outer drive spindle and the second section is free of driving engagement with the outer driver spindle such that operation of the latch is prevented when the outer lever handle is rotated.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: November 30, 1999
    Assignee: NT Falcon Lock
    Inventor: Eugene S. McCaa
  • Patent number: 5941581
    Abstract: A door lock arrangement comprising a frame, a door handle, a slidable deadbolt arrangement, a depressable trigger member for releasing the slidable deadbolt, a deadbolt driver for sliding the deadbolt to its extended position when triggered, and a bidirectional retraction assembly, whereby rotation of the door handle in either direction moves the deadbolt from the extended position to the retracted position.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 24, 1999
    Assignee: NT Falcon Lock
    Inventor: Michael E. Heithe
  • Patent number: D405346
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: February 9, 1999
    Assignee: NT Falcon Lock
    Inventor: Michael E. Heithe